Blocknet QT wallet: https://github.com/BlocknetDX/BlockDX/releases

Block DX: https://github.com/BlocknetDX/blockdx-ui/releases

Note - to trade on the Block DX app requires the Blocknet QT wallet, Block DX and the wallets (and blockchains) of any coins you wish to trade on the DX with. To just store, send and receive Blocknet coins all you need is the Blocknet QT wallet.